IMAT5122: Computer Systems & Networks – Linux System Change Logger Script – Assessment Answers

Internal Code: 1IEEB

Linux System Change Logger Script

Task:

You are an IT support engineer and you have been asked to build a GNU/Linux bash script that monitors a computer system and user activity regularly and logs key information. You need to create a script “mySysMonitor.sh” that automatically and regularly writes to a log file “mySysMonitor.log”. The log file will need to contain time-stamped detailed information about significant changes to the following:
a) Current processes
b) Users currently logged in
c) Devices plugged in
d) Disk usage

1. Overall disk usage
2. The user’s home directory
3. Other key directories
e) Network interfaces and their states
f) Any other relevant information…

The script will need to be written to extract only key details about the changes to the computer system such as listed above and add them to an ever-growing log file. Hence the log file should consist of easily readable key details only. For pass level you are expected to write a script that satisfies a) to e) listed above. For higher marks you are expected to add relevant extra information (e.g. monitoring OS system file changes, monitoring installed applications, etc.) and relevant features, more easily readable output (e.g. HTML), configurable log levels (e.g. verbose,
debug, standard and key-details only).

Note that you should only use common pre-installed command line tools and your work should not rely on additional programs / tools / libraries / etc. If you are unsure about any detail of this coursework please ask your tutor.

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